ETA6003

www.ETAsolution.com

Outperform with Efficiency

Proprietary Information DO NOT Distribute

1

2.5A, 3MHz Switching Charger with Dynamic Power Path Management

DESCRIPTION

ETA6003 is a switching Li-Ion battery charger with dynamic power-path control and input current limiting. When a battery is connected,

depending on the battery voltage, the DC-DC switching regulator either pre-conditions, fast-charges the battery or just regulates a system

programming ISET1 or ISET2 pin, depending on the state of the USB_DET. If USB_DET is low, indicating an valid AC adapter input is present,

the charge current is set by ISET1; otherwise, it is set by ISET2. When the battery voltage reaches the termination voltage i.e. 4.2V, the

charging path disconnects SYS to BATT. The ETA6003 also includes a dynamic power path when the SYS load current exceeds current limit

through the battery.

FEATURES



Switching Charger with Power Path Management



Up to 95% DC-DC Efficiency





Up to 2.5A Max charging current



Instant on with a dead Battery or no Battery



No battery detection



No External Sense resistor



Programmable USB and AC IN Charging Current

APPLICATIONS



Tablet, MID



Smart Phone



Power Bank

ORDERING INFORMATION

PART

PACKAGE PIN

TOP MARK

ETA6003Q3Q

QFN3X3-16

TYPICAL APPLICATION

2A Switching Charger with Dynamic Power Pat

SYS

SW

PGND

IN

BATT

NTC

ISET1

ISET2

USB_DET

ENB

SYS

SYSTEM

LOAD

2.2uH

2.2K

2K

Ω

500

Ω

5V INPUT

22uF

10uF

1uF

ENPPB